No abstract available
MeSH terms
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Albuterol / analogs & derivatives*
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Albuterol / therapeutic use*
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Androstadienes / therapeutic use*
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Fluticasone
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Humans
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Patient Dropouts*
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Pulmonary Disease, Chronic Obstructive / drug therapy*
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Randomized Controlled Trials as Topic
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Salmeterol Xinafoate
Substances
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Androstadienes
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Salmeterol Xinafoate
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Fluticasone
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Albuterol